Aatrox w bug on patch 4.20 (gives unfair advantage to enemy team)
There is a bug on my server which tells the opponent that you have leveled up w for Aatrox. This is unfair because at level 1 invades/fights, it is in some cases better for Aatrox to start q to have a gap closer. If the enemy knows you start w, then their invades could be easier.
What you have to do to reproduce the bug is: start w then press w. One of my friends has helped me to test this too.